Clark County, IL — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
15,328
Male
7,666
50.0%
Female
7,662
50.0%
Median Age
42.0 yrs
Avg Household Size
2.3
Foreign Born
1.1%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher17.1%
High School or Higher41.9%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
6.1%
Disability
0.0%
Non-English Home
5.6%
Married
46.1%
Clark County, IL has a population of 15,328 according to 2023 Census Bureau estimates. The median age is 42.0 years. The largest racial or ethnic group is White at 95.8% of the population. 17.1% of residents hold a bachelor's degree or higher. 1.1% of residents are foreign-born.